Fountain-pen.



PATENTED NOV. 7, 1905.

yNo. 803,927.

E. RBISERT. FOUNTAIN PEN. APPLICATION FILED JULYzl. 1903.

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Miliz em N Y UNITED sTATns PATENT FOUNTAIN-PEN.

Specication of Letters Patent.

Patented Nov. 7, 1905.

Application filed July 27,1903. Serial No. 167,183.

T0 @ZZ whom it may concern:

Be it known that I, EDUARD REIsERT, a subjectot' the Kingof Prussia,German Emperor, and a resident of Hennef-on-the-Sieg, in the Province ofthe Rhine, Kingdom of Prussia, German Empire, have invented a new anduseful Fountain-Pen, of which the following is a specification.

This invention relates to fountain-pens for penholders,and especially tothat type in which the pen after use is withdrawn into the inkholder andwhen it is to be used is protruded therefrom. In such penholders it wasformerly necessary after the drawing in of the pen into the ink-holderto close the aperture for the pen by means of a cap inserted or screwedin, which cap duringthe use of theholder was stuck upon the other end ofthe penholder in order to retain it. This operation involves not only atroublesomemanipulation, but also is liable to ink the fingers, becauseobviously ink may remain in the interior of the closing-cap, and,moreover, ink easily accumulates on the part surrounding theentrance-opening for the pen of the holder end. In order to simplify themanipulation and to' avoid as far as possible the blackening of thefingers, I have devised an undetachable closing organ for the aperturefor the pen. This undetachable closing organ consists in a slide whichcan be operated in various ways; but I prefer to open and to close theaperture for the pen by revolving the slide.

In order to make the invention clearer, reference is made to theaccompanying drawings.

In the drawings there is shown, on an enlarged scale, in Figure l alongitudinal section through a penholder with the improved closing organand mechanism; Fig. 2, an elevation of the holder, thehollow knob z'forming the upper end of the holder being taken away; Fig. 3, a view ofthe said hollow knob e from below; Fig. 4, a section on the line A B,Fig. l, with the slide in the closed position; Fig. 5, the same sectionwith the slide in the open position; Fig. 6, a longitudinal sectionthrough the under part of the penholder, the slide having a positioncorresponding to that shown in Fig. 5.

A tube a serves as the ink-holder, in which tube there is placed at itslower end the rod b, bearing the pen c. The upper end of the rod engagesin a sleeve CZ, having cut-out threading e. A pin f,lt`astened to therod 5 engages through the cut-out threading e and in a longitudinalgroove g of the tube a. The spindle L, directed upward, attached to thesleeve (Z, leads through the stopperq, firmly connected with the tube a,and bears at its free end the hollow knobs'. It' this knob 1' isrevoluble, then the rod L will move according to the direction ofrevolution either downward or upward, so that the pen c emerges from theholder or is withdrawn within the same. This general arrangement isalready well known; but what follows is new.

The lower aperture of the tube a is rather more than halt closed bymeans of the segment c, so that for the passage of the pen there onlyremains the opening Z. Over the tube a is placed a second tube m, thelower opening of which is also more than half closed by means of asegment u, so that there remains open only the aperture 0. segments 7;and a together form a rotary slide. A spring p, which is supported uponthe stop q, presses the hollow cylinder y upward, which is screwed intothe tubc m, so that the lower ends of the tubes a and ym-z'. e., thesegments f; and n-are pressed together and caused to close ei'hciently.The stopper q has a prolongation f1' reaching through the hollowcylinder z/ and bearing a pin w at its upper end, which pin w engages ina recess o of the hollow knob 71, Figs. l and 3. If the outer tube m beheld fast with one hand and with the other hand the knob 2 be turned tothe right or to the left, then the two tubes a and m may be so adjustedwith regard to one another that the segments and fn lie one over theother, as shown in Figs 5 and 6, or opposite to one another, as shown inFigs. l and 4. In the lirst case the aperture Z for the pen is leftfree. the aperture is closed.

Since, as mentioned above, by the revolution of the knob 2'. also themotion of the pen cshall be caused, which motion requires agreaterdegree of revolution than that of the segments L and n, means must beprovided for preventing the tube a from being' turned as soon as theaperturel is opened. For this purpose there is arranged a groove a atthe upper end of the spindle L, and to the hollow knob i there is iXed apin t, which engages in the said groove u.

By this means the knob t' can The said` In the latter case, however,.

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be pulled out without interrupting the connection with the spindle Zt,while the pin w leaves the recess t, and thus the tube CZ is preventedt'rom turning, when the revolution of the knob t' will be continued.

In order exactly to control the degree of turning necessary for openingthe aperture Z and for pushing out the pen e and in order to prevent thepin w from rentering the recess u before such rentering be intended, thefollowing arrangement is provided: the hollow cylinder y has cut-outthreading s, in which a pin y'. fixed to the knob Z, engages. The underpart o1 the threading s, having the extension` of a selnicircle, isprecisely horizontal, the following,` part from a: toc' is vertical, andthe remaining part is spiral-shaped.

The operation is as follows: It the knob el is turned on an angle of onehundred and eighty degrees, the pin j' will have reached m, and theaperture Z will then be opened. The pen c, however, has not yetcommenced to move, since the spindle /t and the stopper g, with the tube(t, and consequently the threading e and thev pin f, have been turnedtogether without changing their respective positions. It is impossibleto continue the revolution of the knob rf before the latter is pulledout and the pin j is raised from m to The pin w has then left the recesso, thus interrupting the connection between the knob/Z and the tube (t.If now the knob is turned again, the pen e will be protruded,\vhile thesegments Zt and n remain in their positions. The pin j moves upward inthe spiral-shaped part of the threading s, thereby increasing thedistance between the knob t' and the pin w, so that the latter cannotreenter into the recess t. As soon as the pin y' has reached the upperend of the threading .s the pen has the position ready for use andfurther turning is impossible. It will be seen that the withdrawing ofthe pen c and the closing of the aperture Z will be done in the reverseway. Zhen the openings 0 and Z are in alinement, the outcoming of theink is prevented by the stopper-formed lower end of the rod I).

What I claim as my invention, and desire to secure by Letters Patent ofthe United States, 1s

said aperture, as and for the purpose set forth.

2. A fountain-pen having an ink-holder with an aperture serving aspassage Jfor the pen, and a rotary slide adapted to open and to closethe said aperture, as and for the purpose set forth.

3. In a fountain-pen, the combination with the ink-holder,having anaperture for the passage of the pen, the pen, and means for protrudingthe pen and for withdrawing the same, of rotary slides for closing andvopening' the said aperture of the ink-holder, and of means forrevolving the said rotary slides, as and for the purpose set 'foi-th.

4. In a fountain-pen, the combination with an inner tube t serving asink-holder and having a segment at its lower end leaving an aperture'Z,the pen c and means for protruding the pen and for withdrawing the samethrough the aperture Z, respectively, of an outer tube m having at itslower end a segment n leaving an aperture f and means for turning thesaid tubes a and m with regard to one another, as and for the purposeset forth.

5. In a fountain-pen, in combination,an inkholder a, having an apertureZ, rotaryslides /rn` for opening or closing the said aperture Z, a knobt', connections between the knobz'and one rotary slide Zr, a rod Inbearing the pen c, connections between the rod and the knobt' for movingthe rod to and fro on turning the knob Z, and means for interrupting theconnection between the knob t' and the rotary slide, as and for thepurpose set forth.

In testimony whereofI have signed my name to this specification in thepresenceof two subscribing witnesses.

EDUARD REISERT.

Witnesses:

W. FoHRR von LYNDHERZ, CARL W. SCHMITT.

